A cloud engineer is receiving multiple alerts from the infrastructure monitoring agent. The alerts state that all the VMs in the public subnet are at 100% CPU utilization. However, when the engineer checks the network utilization of the VMs, the network throughput is at normal levels. Which of the following is the most likely cause of this issue?
Answer(s): B
Cryptojacking occurs when an attacker exploits cloud resources to mine cryptocurrency without the owner's consent. This typically results in high CPU utilization across multiple VMs while keeping network usage relatively low, as mining operations are CPU/GPU-intensive but do not require significant network bandwidth. The cloud engineer should investigate running processes and check for unauthorized mining activities.
A cloud engineer is implementing a deployment strategy with the following requirements:-At least two environments for production and development must be supported.-Changes in one environment must not impact the other environment.-The highest possible availability must be achieved.Which of the following deployment strategies should the engineer implement?
The blue-green deployment strategy supports multiple environments (e.g., production and development) while ensuring that changes in one environment do not affect the other. It also achieves high availability by keeping two separate versions of the application:-The blue environment represents the current stable version.The green environment is where the new version is deployed and tested. Once the green environment is verified, traffic is switched over from blue to green with minimal downtime. If issues arise, the deployment can be quickly rolled back by reverting traffic to the blue environment.
A cloud solutions architect needs to deploy a simple, public-facing website with the following requirements:-Cost-effective-Highly available-Self-healing-SecureWhich of the following will be the most appropriate template to use?
Answer(s): D
Cost-effective: The template specifies spot instances, which are cheaper than on-demand instances.Highly available: Autoscaling is enabled with a minimum of 2 instances, ensuring redundancy.Self-healing: Autoscaling ensures instances are replaced if they fail.Secure: The firewall rules allow HTTPS (port 443) from any source for public access while restricting SSH (port 22) to only 192.168.0.0/24, preventing unrestricted administrative access.This template aligns best with the requirements of a public-facing, secure, self-healing, and cost-effective website deployment.
Which of the following interfaces is most commonly used for SSDs but not for HDDs?
Answer(s): A
NVMe (Non-Volatile Memory Express) is a high-speed storage interface designed specifically for SSDs. It utilizes the PCIe (Peripheral Component Interconnect Express) bus, providing significantly faster data transfer speeds and lower latency compared to traditional interfaces like SATA and SAS, which were originally designed for HDDs. Unlike HDDs, NVMe takes advantage of parallel processing capabilities, making it the preferred choice for modern SSDs.
Which of the following is the most common characteristic of SSDs?
Answer(s): C
SSDs provide significantly higher input/output operations per second (IOPs) compared to traditional spinning hard disks (HDDs). This makes them ideal for high-performance applications such as databases, virtualization, and real-time analytics. They offer low latency and fast data access, which is crucial for workloads requiring rapid read and write speeds.
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